World Endoscopy Organisation [WEO] categorization of potential causative factors for PCCRCs
| WEO categorization of causative factors . | Explanation of category . | N [%] . |
|---|---|---|
| [a] Probable incomplete resection of previous dysplastic lesion | Probable incomplete resection of a previously identified advanced adenoma from the same bowel segment as the subsequently diagnosed CRC, and there was no endoscopic/histological confirmation of complete resection | 0 [0.0%] |
| [b] Detected advanced lesion, not endoscopically resected | An advanced adenoma was identified in the same bowel segment, and it was not endoscopically resected | 9 [40.9%] |
| [c] Possible missed advanced lesion with previous adequate examination | No advanced adenoma was identified in the same bowel segment and there is evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was adequate | 8 [36.4%] |
| [d] Possible missed advanced lesion with previous inadequate examination | No advanced adenoma was identified in the same bowel segment and there is no evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was inadequate | 3 [13.6%] |
| [e] Other, e.g. deviation from planned management pathway | Deviation from planned management pathway: non-compliant to recommended surveillance interval or patient postponed or declined colectomy recommended for advanced lesion | 9 [40.9%] |
| WEO categorization of causative factors . | Explanation of category . | N [%] . |
|---|---|---|
| [a] Probable incomplete resection of previous dysplastic lesion | Probable incomplete resection of a previously identified advanced adenoma from the same bowel segment as the subsequently diagnosed CRC, and there was no endoscopic/histological confirmation of complete resection | 0 [0.0%] |
| [b] Detected advanced lesion, not endoscopically resected | An advanced adenoma was identified in the same bowel segment, and it was not endoscopically resected | 9 [40.9%] |
| [c] Possible missed advanced lesion with previous adequate examination | No advanced adenoma was identified in the same bowel segment and there is evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was adequate | 8 [36.4%] |
| [d] Possible missed advanced lesion with previous inadequate examination | No advanced adenoma was identified in the same bowel segment and there is no evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was inadequate | 3 [13.6%] |
| [e] Other, e.g. deviation from planned management pathway | Deviation from planned management pathway: non-compliant to recommended surveillance interval or patient postponed or declined colectomy recommended for advanced lesion | 9 [40.9%] |
PCCRC, post-colonoscopy colorectal cancer. Advanced adenoma = greater than 1 cm in size and/or villous and/or containing high-grade dysplasia.
World Endoscopy Organisation [WEO] categorization of potential causative factors for PCCRCs
| WEO categorization of causative factors . | Explanation of category . | N [%] . |
|---|---|---|
| [a] Probable incomplete resection of previous dysplastic lesion | Probable incomplete resection of a previously identified advanced adenoma from the same bowel segment as the subsequently diagnosed CRC, and there was no endoscopic/histological confirmation of complete resection | 0 [0.0%] |
| [b] Detected advanced lesion, not endoscopically resected | An advanced adenoma was identified in the same bowel segment, and it was not endoscopically resected | 9 [40.9%] |
| [c] Possible missed advanced lesion with previous adequate examination | No advanced adenoma was identified in the same bowel segment and there is evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was adequate | 8 [36.4%] |
| [d] Possible missed advanced lesion with previous inadequate examination | No advanced adenoma was identified in the same bowel segment and there is no evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was inadequate | 3 [13.6%] |
| [e] Other, e.g. deviation from planned management pathway | Deviation from planned management pathway: non-compliant to recommended surveillance interval or patient postponed or declined colectomy recommended for advanced lesion | 9 [40.9%] |
| WEO categorization of causative factors . | Explanation of category . | N [%] . |
|---|---|---|
| [a] Probable incomplete resection of previous dysplastic lesion | Probable incomplete resection of a previously identified advanced adenoma from the same bowel segment as the subsequently diagnosed CRC, and there was no endoscopic/histological confirmation of complete resection | 0 [0.0%] |
| [b] Detected advanced lesion, not endoscopically resected | An advanced adenoma was identified in the same bowel segment, and it was not endoscopically resected | 9 [40.9%] |
| [c] Possible missed advanced lesion with previous adequate examination | No advanced adenoma was identified in the same bowel segment and there is evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was adequate | 8 [36.4%] |
| [d] Possible missed advanced lesion with previous inadequate examination | No advanced adenoma was identified in the same bowel segment and there is no evidence of caecal intubation [photo-documented or written in the report]; and bowel preparation was inadequate | 3 [13.6%] |
| [e] Other, e.g. deviation from planned management pathway | Deviation from planned management pathway: non-compliant to recommended surveillance interval or patient postponed or declined colectomy recommended for advanced lesion | 9 [40.9%] |
PCCRC, post-colonoscopy colorectal cancer. Advanced adenoma = greater than 1 cm in size and/or villous and/or containing high-grade dysplasia.
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